Rollei R3, ideas for developing?

I took a few sheets of my old Rollei R3 film with me on my recent camping trip. I stocked up when the film was discontinued. Exposed @ 25iso, and developed in the last of my Rollei low speed developer. The negs are quite thin, though with detail in the shadows. Just printable with a #5 filter. I suspect the developer was the culprit, more than the film. I can't find much info on what other developer/time to use for this film exposed @ 25 - the speed I liked it best at. I'm not interested in investing in more RLS for the few sheets I've got left. Any advice? I've got Rodinal, DDX, TMax, d-76, and I think some HC110.
.